In the center of obverse Keibodan emblem with kanji
協 /Kyō/ - to cooperate; to work together; to collaborate from 協會 /Kyōkai/ - Association
reverse
財團法人 - Foundation
大日本警防協會 - Dai Nippon [Greater Japan] Keibō Kyōkai [Civil Defense Association]
特別會員章 - Special Member's Badge
Well-made badge.